1 /*-
2 * Copyright (c) 2015-2016 Mellanox Technologies, Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice unmodified, this list of conditions, and the following
9 * disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 *
25 * $FreeBSD$
26 */
27 #ifndef _LINUX_ETHERDEVICE
28 #define _LINUX_ETHERDEVICE
29
30 #include <linux/types.h>
31
32 #include <sys/random.h>
33 #include <sys/libkern.h>
34
35 #define ETH_MODULE_SFF_8079 1
36 #define ETH_MODULE_SFF_8079_LEN 256
37 #define ETH_MODULE_SFF_8472 2
38 #define ETH_MODULE_SFF_8472_LEN 512
39 #define ETH_MODULE_SFF_8636 3
40 #define ETH_MODULE_SFF_8636_LEN 256
41 #define ETH_MODULE_SFF_8436 4
42 #define ETH_MODULE_SFF_8436_LEN 256
43
44 struct ethtool_eeprom {
45 u32 offset;
46 u32 len;
47 };
48
49 struct ethtool_modinfo {
50 u32 type;
51 u32 eeprom_len;
52 };
53
54 static inline bool
is_zero_ether_addr(const u8 * addr)55 is_zero_ether_addr(const u8 * addr)
56 {
57 return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == 0x00);
58 }
59
60 static inline bool
is_multicast_ether_addr(const u8 * addr)61 is_multicast_ether_addr(const u8 * addr)
62 {
63 return (0x01 & addr[0]);
64 }
65
66 static inline bool
is_broadcast_ether_addr(const u8 * addr)67 is_broadcast_ether_addr(const u8 * addr)
68 {
69 return ((addr[0] + addr[1] + addr[2] + addr[3] + addr[4] + addr[5]) == (6 * 0xff));
70 }
71
72 static inline bool
is_valid_ether_addr(const u8 * addr)73 is_valid_ether_addr(const u8 * addr)
74 {
75 return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
76 }
77
78 static inline void
ether_addr_copy(u8 * dst,const u8 * src)79 ether_addr_copy(u8 * dst, const u8 * src)
80 {
81 memcpy(dst, src, 6);
82 }
83
84 static inline bool
ether_addr_equal(const u8 * pa,const u8 * pb)85 ether_addr_equal(const u8 *pa, const u8 *pb)
86 {
87 return (memcmp(pa, pb, 6) == 0);
88 }
89
90 static inline bool
ether_addr_equal_64bits(const u8 * pa,const u8 * pb)91 ether_addr_equal_64bits(const u8 *pa, const u8 *pb)
92 {
93 return (memcmp(pa, pb, 6) == 0);
94 }
95
96 static inline void
eth_broadcast_addr(u8 * pa)97 eth_broadcast_addr(u8 *pa)
98 {
99 memset(pa, 0xff, 6);
100 }
101
102 static inline void
eth_zero_addr(u8 * pa)103 eth_zero_addr(u8 *pa)
104 {
105 memset(pa, 0, 6);
106 }
107
108 static inline void
random_ether_addr(u8 * dst)109 random_ether_addr(u8 * dst)
110 {
111 if (read_random(dst, 6) == 0)
112 arc4rand(dst, 6, 0);
113
114 dst[0] &= 0xfe;
115 dst[0] |= 0x02;
116 }
117
118 #endif /* _LINUX_ETHERDEVICE */
119